S I ] 2 1 D ec 2 00 5 UFSCARF-TH-05-22 Integrable Vertex Models with General Twists

We review recent progress towards the solution of exactly solved isotropic vertex models with arbitrary toroidal boundary conditions. Quantum space transformations make it possible the diagonalization of the corresponding transfer matrices by means of the quantum inverse scattering method. Explicit expressions for the eigenvalues and Bethe ansatz equations… (More)